Let's get this math done. We have 462 and we're going to multiply it by 3. This is the same as taking 462 and adding it to itself 3 times.
Step 1: 0 + 462 = 462
Step 2: 462 + 462 = 924
Step 3: 924 + 462 = 1386

So, 462*3 = 1386